1r.transect(1)                 Grass User's Manual                r.transect(1)
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NAME

6       r.transect   - Outputs raster map layer values lying along user defined
7       transect line(s).
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KEYWORDS

10       raster
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SYNOPSIS

13       r.transect
14       r.transect help
15       r.transect       [-g]       map=name       line=east,north,azimuth,dis‐
16       tance[,east,north,azimuth,distance,...]    [null=string]    [--verbose]
17       [--quiet]
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19   Flags:
20       -g
21           Output easting and northing in first two  columns  of  four  column
22           output
23
24       --verbose
25           Verbose module output
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27       --quiet
28           Quiet module output
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30   Parameters:
31       map=name
32           Raster map to be queried
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34       line=east,north,azimuth,distance[,east,north,azimuth,distance,...]
35           Transect definition
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37       null=string
38           Char string to represent no data cell
39           Default: *
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DESCRIPTION

42       This  program  outputs,  in ASCII, the values in a raster map which lie
43       along one or more  user-defined  transect  lines.   The  transects  are
44       described by their starting coordinates, azimuth, and distance.
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46       The  line  parameter is a definition of (each) transect line, specified
47       by the geographic coordinates of  its  starting  point  (easting,  nor‐
48       thing),  the  angle and direction of its travel (azimuth), and its dis‐
49       tance (distance).
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51       The azimuth is an angle, in degrees, measured to  the  east  of  north.
52       The distance is in map units (meters for a metered database, like UTM).
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54       The null parameter can optionally be set to change the character string
55       representing null values.
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NOTES

58       This program is a front-end to the r.profile program.  It  simply  con‐
59       verts  the  azimuth  and distance to an ending coordinate and then runs
60       r.profile.   There  once  were  width=  and   result=raw|median|average
61       options which are not currently implemented.
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SEE ALSO

64       r.profile
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AUTHOR

67       Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
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69       Last changed: $Date: 2004-02-24 01:35:46 +0100 (Tue, 24 Feb 2004) $
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71       Full index
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73       © 2003-2008 GRASS Development Team
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77GRASS 6.3.0                                                      r.transect(1)